Method and system for component authentication of a vehicle

Abstract

A component for use in a prospective vehicle obtains from a certification authority a certification that an authentic vehicle is associated with a cryptographic key. The certification certifies that the cryptographic key is bound to information identifying the authentic vehicle. The component utilizes the cryptographic key obtained from the certification authority in cryptographic communication with the prospective vehicle, and determines whether the prospective vehicle is the authentic vehicle based on whether the cryptographic key is successfully utilized in the cryptographic communication. Upon determining the prospective vehicle is the authentic vehicle, the component may allow the prospective vehicle to operate the component.

1. A method for authentication of a prospective vehicle by a component for use in the prospective vehicle, the method performed by the component and comprising the steps of:
 accessing, by the component, the prospective vehicle, wherein the component has at least a component computing unit, a component cryptographic unit, a component memory, the component memory storing data related to the component; 
 obtaining from a certification authority a certification that an authentic vehicle is associated with a cryptographic key; 
 utilizing, by the component cryptographic unit, the cryptographic key in cryptographic communication with a cryptographic unit of the prospective vehicle; and 
 determining, by the component, whether the prospective vehicle is the authentic vehicle based on whether the cryptographic key is successfully utilized in the cryptographic communication. 
 
   
   
     2. The method of  claim 1  wherein the certification comprises a digital certificate. 
   
   
     3. The method of  claim 1  wherein the certification comprises a digital signature of the certification authority. 
   
   
     4. The method of  claim 1  wherein the certification authority is authenticated by a second certification authority. 
   
   
     5. The method of  claim 1 , further comprising the step of determining that the certification authority is authorized to certify the authentic vehicle. 
   
   
     6. The method of  claim 1  wherein the step of obtaining the certification comprises obtaining a certification that a vehicle having an identified attribute is associated with the cryptographic key. 
   
   
     7. The method of  claim 1  wherein the authentic vehicle has a first cryptographic key and the cryptographic key with which the certification associates the authentic vehicle is a second cryptographic key corresponding to the first cryptographic key. 
   
   
     8. The method of  claim 7  wherein the first cryptographic key is accessible only by the authentic vehicle. 
   
   
     9. The method of  claim 7  wherein the first cryptographic key is a private cryptographic key of the authentic vehicle and the second cryptographic key is a public cryptographic key of the authentic vehicle. 
   
   
     10. The method of  claim 1 , further comprising the step of allowing the prospective vehicle to operate the component upon determining the prospective vehicle is the authentic vehicle. 
   
   
     11. A system for authentication of a proposed vehicle by a component for use in the prospective vehicle, the system comprising:
 a component obtaining from a certification authority a certification that an authentic vehicle is associated with a cryptographic key, the component comprising
 a cryptographic unit utilizing the cryptographic key in cryptographic communication with a cryptographic unit of the prospective vehicle; and 
 a computing unit determining whether the prospective vehicle is die authentic vehicle based on whether the cryptographic key is successfully utilized in the cryptographic communication. 
 
 
   
   
     12. The system of  claim 11  wherein the certification comprises a digital certificate. 
   
   
     13. The system of  claim 11  wherein the certification comprises a digital signature of the certification authority. 
   
   
     14. The system of  claim 11  wherein the certification authority is authenticated by a second certification authority. 
   
   
     15. The system of  claim 11 , wherein the computing unit determines that the certification authority is authorized to certify the authentic vehicle. 
   
   
     16. The system of  claim 11  wherein the certification comprises a certification that a vehicle having an identified attribute is associated with the cryptographic key. 
   
   
     17. The system of  claim 11  wherein the authentic vehicle has a first cryptographic key and the cryptographic key with which the certification associates the authentic vehicle is a second cryptographic key corresponding to the first cryptographic key. 
   
   
     18. The system of  claim 17  wherein the private cryptographic key is accessible only by the authentic vehicle. 
   
   
     19. The system of  claim 17  wherein the first cryptographic key is a private cryptographic key of the authentic vehicle and the second cryptographic key is a public cryptographic key of the authentic vehicle. 
   
   
     20. The system of  claim 11  wherein the computing unit allows the prospective vehicle to operate the component upon determining the prospective vehicle is the authentic vehicle.